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Webster 1913 Edition


Occlusion

Oc-clu′sion

,
Noun.
[See
Occlude
.]
1.
The act of occluding, or the state of being occluded.
Constriction and
occlusion
of the orifice.
Howell.
2.
(Med.)
The transient approximation of the edges of a natural opening; imperforation.
Dunglison.
Occlusion of gases
(Chem. & Physics)
,
the phenomenon of absorbing gases, as exhibited by platinum, palladium, iron, or charcoal;
thus, palladium absorbs, or
occludes
, nearly a thousand times its own volume of hydrogen, and in this case a chemical compound seems to be formed
.

Webster 1828 Edition


Occlusion

OCCLU'SION

,
Noun.
s as z. [L. occlusio.] a shutting up; a closing.
[This is an elegant word, though little used.]